onion_buildenv

#!/bin/bash

cd $(dirname $0)

. ./profile

[ -z "$OPENWRT_VERSION" ] && exit 1
[ -z "$TARGET" ] && exit 1
[ -z "$SUBTARGET" ] && exit 1

BUILD_DIR="$PWD"

TARGET_IMAGE_BUILDER_DIR="$BUILD_DIR/openwrt-imagebuilder"
IMAGE_BUILDER_ZIP="$BUILD_DIR/${IMAGE_BUILDER_URL##*/}"
IMAGE_BUILDER_FILE="${IMAGE_BUILDER_ZIP//.tar.xz}"
OUTPUT_DIR="$PWD/output"

DATE=$(date +"%Y%m%d")
VERSION_INFO="${OPENWRT_VERSION}-${DATE}"

download_file() {
	local url=$1
	local output=$2

	[ -e $output ] && return 0

	if ! curl "$url" -o "$output"; then
		echo "ERROR downloading from $url"
		return 1
	fi

	return 0
}

verify_archive() {
	local file=$1

	if ! tar tJf "$file" > /dev/null; then
		echo "ERROR: invalid archive $file"
		return 1
	fi

	return 0

}

extract_archive() {
	local dir=$1
	local file=$2

	if ! tar -C "$dir" -xJf "$file"; then
		echo "ERROR: decompression failed for $file"
		return 1
	fi

	return 0
}

builder_exist() {
	[ -d "$TARGET_IMAGE_BUILDER_DIR" ] && return 0

	echo "image builder not found. To prepare image builder run"
	echo "$0 setup_imagebuilder"

	return 1
}

clean_imagebuilder() {
	[ -d "$TARGET_IMAGE_BUILDER_DIR" ] && rm -rf "$TARGET_IMAGE_BUILDER_DIR"
	[ -f "$IMAGE_BUILDER_ZIP" ] && rm -f "$IMAGE_BUILDER_ZIP"
}

verify_builder() {
	verify_archive "$IMAGE_BUILDER_ZIP"
}

extract_builder() {
	extract_archive "$BUILD_DIR" "$IMAGE_BUILDER_ZIP" || return 1
	clean_imagebuilder
	mv "$IMAGE_BUILDER_FILE" "$TARGET_IMAGE_BUILDER_DIR" || return 1
	cp $TARGET_IMAGE_BUILDER_DIR/repositories.conf $TARGET_IMAGE_BUILDER_DIR/repositories.conf.org
	return 0
}

download_builder() {
	download_file "$IMAGE_BUILDER_URL" "$IMAGE_BUILDER_ZIP"
}

prepare_imagebuilder() {
	if [ -n "$ADDITIONS_DIR" ] && [ -d "$ADDITIONS_DIR" ]; then
		cp -a $ADDITIONS_DIR/* $TARGET_IMAGE_BUILDER_DIR
	fi
}

update_package_repos() {
	## add packages

	[ -z "$PACKAGE_REPOS" ] && return 0

	echo -e "$PACKAGE_REPOS" > $TARGET_IMAGE_BUILDER_DIR/repositories.conf
	cat $TARGET_IMAGE_BUILDER_DIR/repositories.conf.org >> $TARGET_IMAGE_BUILDER_DIR/repositories.conf

	return 0
}

update_imagebuilder() {
	builder_exist || return 1
	update_package_repos || return 1
	prepare_imagebuilder || return 1
}

setup_imagebuilder() {
	download_builder || return 1
	verify_builder || return 1
	extract_builder || return 1
	update_package_repos || return 1
	prepare_imagebuilder || return 1
}

build_firmware() {
	local profile files_dir packages

	profile=$1
	if [ -z "$profile" ]; then
		echo "missing profile argument"
		echo "build_firmware <model>"
		return 1
	fi

	files_dir=$ADDITIONS_DIR/files
	[ -n "$IMAGE_BUILDER_PACKAGES" ] && packages=$(echo -e $IMAGE_BUILDER_PACKAGES | tr '\n' ' ')

	make -C "$TARGET_IMAGE_BUILDER_DIR" image PROFILE=$profile PACKAGES="$packages" FILES="$files_dir" || return 1

	# Config CONFIG_VERSION_NUMBER is empty in OpenWRT imagebuilder 23.05 version by default. But profiles.json file 
	# determines omega final image name with version field included. We can extract the version from our OPENWRT_VERSION
	# variable in this case
	if [ -z $(awk -F= '/^CONFIG_VERSION_NUMBER/{print $2}' $TARGET_IMAGE_BUILDER_DIR/.config | tr -d '"') ]; then
		BUILT_VERSION=$OPENWRT_VERSION
	else
		BUILT_VERSION=$(awk -F= '/^CONFIG_VERSION_NUMBER/{print $2}' $TARGET_IMAGE_BUILDER_DIR/.config | tr -d '"')
	fi

	if [ $? -ne 0 ]; then
		echo "ERROR during image building for $profile"
		return 1
	else
		[ ! -d "$OUTPUT_DIR" ] && mkdir -p $OUTPUT_DIR
		target_image="$OUTPUT_DIR/${profile}-${VERSION_INFO}.bin"
		cp $TARGET_IMAGE_BUILDER_DIR/bin/targets/${TARGET}/${SUBTARGET}/openwrt-${BUILT_VERSION}-${TARGET}-${SUBTARGET}-${profile}-squashfs-sysupgrade.bin $target_image
	fi
}

build_all_firmware() {
	local profiles="$@"
	local prof

	profiles="${profiles:-${BUILD_MODELS}}"

	for prof in $profiles; do
		if build_firmware "$prof"; then
			echo "> Compiled firmware at $OUTPUT_DIR"
		else
			echo "> Compilation error!"
			return 1
		fi
	done
}

if [ -z "$TARGET_IMAGE_BUILDER_DIR" ]; then
	echo "TARGET_IMAGE_BUILDER_DIR can not be empty string"
	exit 1
fi

commands="
setup_imagebuilder
update_imagebuilder
clean_imagebuilder
build_firmware
build_all_firmware
"

usage_help() {
	local cmd

	echo "$0: "

	for cmd in $commands; do
		echo -e "\t$cmd"
	done
}

if [ $# -lt 1 ]; then
	usage_help
	exit 1
fi

if [ "$(type -t $1)" != "function" ]; then
	echo "$1: function not found"
	usage_help
	exit 1
fi

cmd=$1
shift
$cmd $@